Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income before non-controlling interests	$ 279	$ 397	$ 1,511	$ 1,482
Other comprehensive (loss) income, before tax:
Foreign currency translation adjustments	(237)	127	(538)	652
Unrealized investment (losses) gains	0	(8)	0	11
Gain (loss) related to pension/post-retirement plans	23	(168)	131	(140)
Other comprehensive (loss) income, before tax	(214)	(49)	(407)	523
Income tax expense (benefit) on other comprehensive income	9	(30)	24	(10)
Other comprehensive (loss) income, net of tax	(223)	(19)	(431)	533
Comprehensive income	56	378	1,080	2,015
Less: comprehensive income attributable to non-controlling interest	3	4	14	19
Comprehensive income attributable to the Company	$ 53	$ 374	$ 1,066	$ 1,996

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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